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Performance of Chlorella vulgaris for the Removal of Ammonia-Nitrogen from Wastewater
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  • Journal title : Environmental Engineering Research
  • Volume 18, Issue 4,  2013, pp.235-239
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2013.18.4.235
 Title & Authors
Performance of Chlorella vulgaris for the Removal of Ammonia-Nitrogen from Wastewater
Choi, Hee-Jeong; Lee, Seung-Mok;
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 Abstract
In the present investigation, the efficiency of Chlorella vulgaris (C. vulgaris) was evaluated for the removal of ammonia-nitrogen from wastewater. Eight different wastewater samples were prepared with varied amounts of concentrations from 15.22 to 205.29 mg/L. Experiments were conducted at pH , temperature , light intensity , and dark-light cycles of 8-16 hr continuously for 8 days. From the results, it was found that was completely removed by C. vulgaris, when the initial concentration was between 5.22-25.24 mg/L. However, only 50% removal was obtained when the concentration was 85.52 mg/L, which further decreased to less than 32% when the concentration exceeded 105.43 mg/L. The further influence of nitrogen on chlorophyll was studied by various concentrations. The maximal value of chlorophyll a (Chl a) content was found to be 19.21 mg/L for 65.79 mg/L concentration, and the maximum specific removal rate of 1.79 mg/mg Chl a/day was recorded at an concentration of 85.52 mg/L. These findings demonstrate that C. vulgaris could potentially be employed for the removal of from wastewater.
 Keywords
Chlorella vulgaris;Microalgae; removal;Wastewater treatment;
 Language
English
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